I wore these, along with a few others, as pajamas on rotation for about two and a half months. There are no noticeable stains, and I think they can still be worn. As of now, they were still being sold in the online store, so I think they are relatively new products, but the 80 size was sold out. Even if there are any loose threads, I am selling items that I have determined do not affect wearability. Also, there may be fold wrinkles during storage and packaging. If you are concerned, please refrain from purchasing. [Notes] Pet owner (possibility of not being able to remove all pet hair) Due to childcare, there may be delays in shipping Simple packaging and recycled packaging Pack as compactly as possible (may compress if necessary) The cheapest shipping method (usually anonymous shipping) Due to amateur inspection, there is a possibility of overlooking stains, etc. Yu-Yu Mercari delivery ⇄ Raku-Raku Mercari delivery may be changed without notice Unable to respond to shipping troubles Please note that we cannot accept returns or refunds when purchasing. Please purchase only if you agree to the above. Thank you for viewing.